%I #5 Sep 19 2022 07:35:17
%S 1,2,1,1,2,2,0,0,1,1,2,1,2,1,2,0,1,0,0,2,0,2,0,1,2,1,2,2,0,0,2,0,2,0,
%T 0,0,1,2,2,1,2,0,1,2,0,0,0,2,0,2,0,2,2,0,2,2,2,2,1,0,1,2,2,2,0,0,2,1,
%U 0,1,1,1,1,0,1,1
%N Negasemiternary (or NST) representation of the unit ambinumber (0,1).
%H Don Knuth, <a href="http://cs.stanford.edu/~knuth/papers/ambidextrous.pdf">Ambidextrous Numbers</a>, Preprint, September 2022. See (15.2).
%e (0, 1) = 1.21122 00112 12120 10020 20121 22002 ...
%Y Cf. A355904-A355911, A355913.
%K nonn
%O 1,2
%A _N. J. A. Sloane_, Sep 19 2022